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Frontend Software Engineer

IO AssociatesIslington, London🇬🇧United KingdomPosted 9 Sept 2026

Why This Role Stands Out

This hybrid Frontend Software Engineer role offers a fantastic opportunity to build impactful, data-rich web applications within a company renowned for its innovative technology and strong, trusting culture. If you thrive on creating performant and dynamic user interfaces with a focus on real-time data and possess skills in React and TypeScript, you'll find yourself empowered to drive significant contributions. Apply now to join a team dedicated to excellence and make a real difference.

Quick Overview

Seniority
Mid Senior
Employment type
Full Time
Work mode
Hybrid
Location
Islington, London, United Kingdom
FiberStorybookCSSJestPlaywrightReactTailwind CSSThree.jsTypeScriptViteVitestWebGLgRPC

Job Description

Frontend Software Engineer - Hybrid - London - Hiring across all levels

Our Client

Our client's platform connects to existing cameras and sensors to detect threats, retrace events, and surface Real Time insights - all without replacing a single device. They help teams reduce risk, cut costs, and grow revenue through better visibility, faster decisions, and fewer blind spots.

Their culture is built on a foundation of radical candour and mutual trust. They recognise that being an industry leader requires more than just building exceptional products - it requires empowering a team of exceptional people. Individually, the team operates with high autonomy; collectively, they're unified by a shared drive to achieve their mission through a commitment to excellence.

The Role

They're looking for a Front End engineer with experience building complex, performant, dynamic web applications for visualising and navigating data.

You'll be responsible for building core Front End components and interfaces, as well as extending them to drive customer-specific workflows across a variety of sectors.

This is a high-impact role suited to someone who can rapidly bring a prototype from concept to execution while choosing robust, reusable abstractions.

Key Skills

  • Core technologies: React, TypeScript, Vite, Tailwind CSS, gRPC/protobuf
  • 3D (desirable): Experience visualising data in 3D (eg Three.js, React Three Fiber, WebGL, Deck.gl)
  • Real Time data flows: Comfortable working with Real Time data and async patterns (WebSockets, workers)
  • Writing testable, reusable code: Vitest/Jest/Playwright, Storybook, design systems
  • Data visualisation: Presenting complex data intuitively; geospatial experience is a plus
  • UX/UI (desirable): A strong sense of user experience, accessibility and visual design is a plus

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